1.do the objective
2.this game takes a lot of practice use the games training stuff and have bots to help there like players but bad
3.every class has a specific job

1.scout he just dose the objective he is a mean class with a shotgun shoot people talk crap to them and get them mad use binds and day phrases or binds like "are you my dog, because i just put you down" target people mostly medics and make people angry.

2.solder just kill people use your rocket launcher to shoot people protect medics and be a good asset to your team and rocket jump (by shooting a rocket jumping and crouching at the same time) oh yea it takes little skill

3. Sniper aim for the head aim for medics,heavy,snipers and important assets to the other team kill spys because there bad

4.pyro pyro helps the team a lot killing spys helping engines killing things and explosive classes just reflect everything to punish those classes extinguish teammates be nice to your team

5.demoman use the weapons to kill things set up traps kill every class just kill that's all

6.medic heal everyone everyone needs your help heal everyone and not just 1 class be a nice person and just be an asset to the team help the team no matter what

7.heavy kill people use the Tommy and sandvich heal medics kill everyone that you see turn around a lot so no spys backstab you

8.engie set up series to help the team and punish overextending classes have dispensers in places to help the team teleported in great places be a great person in the team you are very important to the team

9.spy backstab classes and kill the enemies that are becoming a problem to your team and destroy sentrys and help the team with that and just help the team cap points by killing hearts demos engine nests annoying solders etc

Now that's all if this guide helped you like it friend me or go to my profile pic and tell me thoughts on this guide :)